Doctor profile · Federal record

Dr. Mary Lou Hernandez, LCSW

Clinical Social Worker · Phoenix, AZ

  • NPI 1083668388
  • MIPS 98.3 / 100 · 2023
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
901 E Willetta St, 3Rd Floor
Phoenix, AZ 850062727
(602) 239-6900
Mailing address
1010 N Country Club Dr
Mesa, AZ 852013309

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
April 7, 2008
Specialty taxonomy
1041C0700X — NUCC code
State license (1)
Arizona #0169
Medicaid
AZ #897134

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083668388. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
113
Distinct HCPCS
5
Medicare allowed
$9,093
HCPCS Description Services Patients Avg allowed
90846 Family psychotherapy without patient, 50 minutes 53 37 $70
90834 Psychotherapy, 45 minutes 18 17 $72
90837 Psychotherapy, 1 hour 18 15 $108
90832 Psychotherapy, 30 minutes 13 13 $55
90791 Psychiatric diagnostic evaluation 11 11 $128

In context: peer comparison

Among 14 peers in this city , average services per provider: 121. This provider delivers 0.9× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Lou Hernandez's medical specialty?
Dr. Mary Lou Hernandez practices Clinical Social Worker in Phoenix, AZ.
Where does Dr. Mary Lou Hernandez practice?
Dr. Mary Lou Hernandez practices at 901 E Willetta St, Phoenix, AZ 850062727. Office phone: 6022396900.
What is Dr. Mary Lou Hernandez's NPI?
Dr. Mary Lou Hernandez's National Provider Identifier (NPI) is 1083668388, issued by NPPES.
What procedures does Dr. Mary Lou Hernandez commonly perform?
Top Medicare-reported procedures in 2023: Family psychotherapy without patient (HCPCS 90846); Psychotherapy (HCPCS 90834); Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.